ליטעראַטור פֿון בית שני אויף בראשית 31:10

[19] You will not find the Practiser Jacob saying “methought,” but “behold a stairway firmly fixed, whose top reached to heaven” (Gen. 28:12), and again “at the time that the sheep conceived, I saw them with my eyes in my sleep, and behold the he-goats and the rams leaped upon the sheep and the goats wholly white, and streaked, and sprinkled as though with ashes” (Gen. 31:10, 11).

[200] For rich in offspring is this wedlock, seeing that it does not bring one body to the embraces of another but mates well-endowed souls with perfect virtues. Mount then, all ye right thoughts and reasonings of wisdom, impregnate, impart seed, and whenever you catch sight of a soul of deep rich virgin soil, pass it not by, but inviting it to union and intercourse with yourselves, render it pregnant and so effect its consummation; for all that it brings forth shall be goodly, male offspring “consisting of pure white, speckled and ashy-sprinkled”  (Gen. 31:10).